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  2. Hypodontia - Wikipedia

    en.wikipedia.org/wiki/Hypodontia

    When there is a case of hypodontia of the permanent premolar teeth, the primary molar teeth would often remain in the mouth beyond the time they are meant to be lost. [76] Therefore, with a presence of healthy primary teeth in the absence of a permanent successor, retaining the primary teeth can be a feasible management of hypodontia.

  3. Tooth loss - Wikipedia

    en.wikipedia.org/wiki/Tooth_loss

    Tooth loss is a process in which one or more teeth come loose and fall out. Tooth loss is normal for deciduous teeth (baby teeth), when they are replaced by a person's adult teeth. Otherwise, losing teeth is undesirable and is the result of injury or disease, such as dental avulsion, tooth decay, and gum disease.

  4. Human tooth development - Wikipedia

    en.wikipedia.org/wiki/Human_tooth_development

    The cause of these deformities is due to a mutation in enamel in expression. Dental patients with this disease should be especially cautious and visit their dentist frequently. Natal and neonatal teeth are an anomaly that involves teeth erupting in a newborn infant's mouth earlier than usual. The incidence ranges from 1:2,000 to 1:3,500 births.

  5. Toothlessness - Wikipedia

    en.wikipedia.org/wiki/Toothlessness

    With the loss of teeth, there is a decrease in this vertical dimension, as the mouth is allowed to overclose when there are no teeth present to block the further upward movement of the mandible towards the maxilla. This may contribute, as explained above, to a sunken-in appearance of the cheeks, because there is now "too much" cheek than is ...

  6. Anodontia - Wikipedia

    en.wikipedia.org/wiki/Anodontia

    Anodontia is the congenital absence of teeth and can occur in some or all teeth; whereas partial anodontia (or hypodontia), involves two dentitions or only teeth of the permanent dentition (Dorland's 1998). Approximately 1% of the population has oligodontia. [1]

  7. Tooth mobility - Wikipedia

    en.wikipedia.org/wiki/Tooth_mobility

    Tooth loss implies in loss of several orofacial structures, such as bone tissues, nerves, receptors and muscles and consequently, most orofacial functions are diminished. [2] Destruction of the supporting tissues of the teeth may progress to necrosis (tissue death) of the alveolar bone, which may result in a decrease in the number of teeth. The ...

  8. Enamel hypoplasia - Wikipedia

    en.wikipedia.org/wiki/Enamel_hypoplasia

    In these cases, teeth may lose their weakened enamel shortly after eruption and are highly susceptible to dental caries. Affected teeth are highly sensitive to chemical and thermal irritants, and may also be difficult to obtain anesthesia. The causes of MIH are thought to be similar to those of other forms of enamel hypoplasia, but occur ...

  9. Human tooth - Wikipedia

    en.wikipedia.org/wiki/Human_tooth

    For human teeth to have a healthy oral environment, enamel, dentin, cementum, and the periodontium must all develop during appropriate stages of fetal development. Primary teeth start to form in the development of the embryo between the sixth and eighth weeks, and permanent teeth begin to form in the twentieth week. [ 25 ]